Carbon-amalgamator



UNITED STATES PATENT OFFICE;

WASHINGTON H. LAWRENCE, or. CLEVELAND, oHro'.

CARBQN-AMALGAMATOR;

SPECIFICATION forming part of Letters Patent No. 377,901, dated February 14- 1888.

Appl cation filed April 2, 1887. Serial No. 233,521. (No model.)

: enable others skilled in the art to which it pertains to make and use the same.

.My invention relates to improvements in amalgamating the materials for the manufacture of carbons; and it consists in the construction and combination of parts,'hereinafter described and specifically pointed out in the claims, the object'being to secure' a perfect amalgamation of the various substances used and the facility for accomplishing this speedily and with large quantities of material.

In the accompanyingdrawings, Figure 1 represents a view in elevation, partly broken away .to show interior construction, of a furnace with a series of amalgamating-cylinders,

Fig. 2 is a partial sectional view, taken on the line as y, of the apparatus shown in Fig. 1; and Fig. 3 is a plan view from above of the driv- I ing-gear for revolving the cylinder and shaft,

shown as a detached view.

In the manufacture of carbons one of the.

chief obstacles to obtaining the necessary'hormogeneity. is the difficulty of securing a perfect amalgamation of the materials ,which has to be done under heat, owing to the tendency of the finely-ground carbon-dust, pitch, and other materia1s,when stirred or shaken in the the whole arranged according to my invention.

ordinary, methods, to separate into layers, ac

cording to the gravity of the various materials,

40 and to form into more or less compact masses during the operation and before a thorough commingling and amalgamation of the ingredients is secured, such masses, when formed, resisting to some extent the action of the 'apparatus employed to effect the amalgamation, in consequence of which the carbons, when formed, are not homogeneous, but-differ in the proportions of the ingredients in various parts. 'lo obviate these difliculties I make 0 use of the mechanism shown in the drawings,

which consists, essentially, of a cylindrical vessel, A, known in the art as an amalgam- .withd rawn ator, placed horizontally and supported in a suitable frame, a,

volved therein by the means presently to be described.

The cylinder A flues, quite around the cylinder before entering the smoke stack, which flue is provided with dampers b, by which theheat maybe regulated. A shaft, D,-passes centraliy through the cylinder A, and is supported at each end in bearis so placed that a flueo'r ings E, independent of the cylinder, one ofwhich bearings receives a sleeve, f, rigidly secured at one end to the cylinder A, and bearing at its other end suitable gears, g, by which,

or, if preferred, by a pulley, the sleeve and cylinder are -r evotvedt lhe'shaft 'Dpasses through the sleeve f as a bearing, and, being provided at its outer end with suitable gearat each'end. so as to be re- B, from the furnace 0 pass nearly or ing, h, is also connected with the p0wer, so as tobe revolved independently of the cylinder A and in either direction; but I prefer to arrange a back shaft, ck, provided with gears Z Z,

and to so proportion the various gears as to drive theshaft D at about six times the speed b of the cylinder A and in the same direotiom.-.

the shaft It being driven by pulleys Within 'meshin'g, respectively,with the gears g and h,

the cylinder the shaft D is provided with rigid arms d, extending to near'the shell of the cyl- I which are preferably set in two or more I inder, series at an equal angle with, each other, and serve as heaters to stir the charge inthe cylinderA and. prevent the formation oflumps,

and may be arranged to act as'conveyers todischarge the contents of the cylinder, if desired. I

" In one end of the cylinder A is provided a door, 0, I through which the-chargeis introduced to and from the cylinder; and in practice it is preferable to'fill the cylinder not more than about one quarter full to obtain the best results ,When the mixed materials are charged into the amalgamator, they are distributed as equally as "possible in the cylinder, which is.

then securely closed and set in motion and rolls the materials over from the ascending side,while the almiilnoving in the same direction, but at greater speed, continually stir and mix the materials and prevent the formawhich may be securely closed, and

,7 into a homogeneous mixture.

For the sake of economyin operation, I prefer to arrange two or more amalgamators in a series, allof which may be'heated by the same furnace, and a part of which may be in operation while the others are being discharged. In Fig. 1 two amalgamators are shown so arranged; but a greater number may be so arranged, if desired.

What I claim, and desire to secure by Let ters Patent, is-

1. In a carbon-ainalgamator, the combina tion of a horizontal revolving vessel, a. furnace for heating said vessel, and stirring-arms revolving therein at a speed different from thatof the containing-vessel, substantially as and for the purposes set forth.'

2. In a carbon-amalgamator, the combination of a horizontal revolving vessel, a furnace for heating the same, stirring arms revolving in said vessel, and mechanism for revolving each independently,substantiall y as described.

3. In a carbon-amalgamatonthe combination of a horizontal revolving vessel, stirringarms revolving therein in the same direction as the vessel, a furnace for heating said vessel, and mechanism for revolving the arms independently of the vessel, substantially as described.

I 4. In a carbon-amalgamator, the combination of a horizontal cylindrical revolving vessel, a furnace for heating the same, a shaft centrally revolving in said vessel, stirringarms extending from said shaft in alternating series, and mechanism for revolving both the vessel and the shaft at different speeds, substantially as described.

5. -In a carbon-amalgamator, the combina tion of a horizontal revolving cylindrical vessel, a furnace for heating the same, a shaft centrally revolvingin said vessel, stirring-arms extending from said shaft in alternating series; and mechanism for revolving both the vessel and the shaft in the same direction, but at different rates of speed, substantially as described.

6. In a carbon-amalgamator, the cylindrical vessel A, surrounded by a heating-flue and supported horizontally in frames, permitting its free revolution therein, in-combination with a-shaft provided with stirring-arms and extending centrally through the vessel, and means for revolving said cylinder and shaft independently, substantially as described.

7. The combination, in a carbon-amalgamating apparatus, of a revolving cylindrical vessel horizontally supported in bearing-frames, a heating flue or flues surrounding the cylinder, a shaft extending ceutrallythrough the cylinder and bearing stirring-arms, and mechanism for simultaneously revolving the cylinder andshaft at different rates of speed, substantially as described.

8. The combination, in a carbon-amalgamating apparatus, of two or more horizontal cylindrical vessels arranged in series and heated by flues from the same furnace, with dampers for directing and regulating the heat to each cylinder, a shaft with stirring-arms arranged centrallyin each cylinder, and mechanism for revolving the several cylinders and shafts independently, all substantially as described.

9. The combination of the flue B, revolving cylinder A, shaft D, arms d, sleeve f, bearings E, and gears g h I I, all arranged and operat- 2 ing substantially as described.

W. H. LAWRENCE.

Witnesses:

L. Pnnn'rrss, O. M. VoBoE. 

